Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel

ZnO is a unique material that exhibits semiconducting, piezoelectric, and pyroelectric multiple properties. ZnO nanostructures have drawn a widespread interest from researchers because of their multi-functional properties. The purposes of this study are to investigate the effects of adding sodium...

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Main Author:	Kamardin, Ili Liyana Khairunnisa
Format:	Thesis
Language:	English English English
Published:	2021
Subjects:	T Technology (General)
Online Access:	http://eprints.uthm.edu.my/6476/1/24p%20ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN.pdf http://eprints.uthm.edu.my/6476/2/ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6476/3/ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN%20WATERMARK.pdf
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spelling	my-uthm-ep.64762022-02-06T21:02:34Z Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel 2021-02 Kamardin, Ili Liyana Khairunnisa T Technology (General) TA401-492 Materials of engineering and construction. Mechanics of materials ZnO is a unique material that exhibits semiconducting, piezoelectric, and pyroelectric multiple properties. ZnO nanostructures have drawn a widespread interest from researchers because of their multi-functional properties. The purposes of this study are to investigate the effects of adding sodium hydroxide and citric acid in the basic sol-gel on the formation of zinc oxide (ZnO) nanostructures via a chemical method. A ZnO sol was prepared by dissolving zinc acetate dehydrate (ZnAC) and diethanolamine (DEA) in deionized water (H2O) and isopropanol (2- PrOH). The precursor solutions were spin-coated on the ITO/PET substrate and were dried at room temperature and pre-heated oven at 150°C for 3 minutes. Hot Water Treatment (HWT) was carried out at 70°C, 80°C, and 90°C for 8, 12, and 16 hours. X-ray diffraction (XRD) analysis recorded that (100) and (101) planes were formed as the preferred orientation samples with good quality and crystallization of the ZnO thin films. Based on Atomic Force Microscope (AFM) and Field Emission Scanning Electron Microscope (FESEM), HWT of 12 h immersed time was noticed as the optimum time for the growth of ZnO structures with the basic sol-gel solution. A 0.75 mol of NaOH and C6H8O7, respectively, was dropped in the basic solution for the second part of this study. The HWT was carried out at 90°C for 8, 12, and 16 hours. The presence of NaOH recorded higher intensity with ZnO sheet structure in a flower bud shape. The size of the structures approached nano-size. The presence of NaOH and C6H8O7 has changed the ZnO dimension from 1D to 2D. The ZnO 1D rod structures and 2D sheet structures can be used in LED, solar cells, photodetectors, gas sensor, field emitter, and photovoltaic devices. 2021-02 Thesis http://eprints.uthm.edu.my/6476/ http://eprints.uthm.edu.my/6476/1/24p%20ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN.pdf text en public http://eprints.uthm.edu.my/6476/2/ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/6476/3/ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Kamardin, Ili Liyana Khairunnisa Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel
description	ZnO is a unique material that exhibits semiconducting, piezoelectric, and pyroelectric multiple properties. ZnO nanostructures have drawn a widespread interest from researchers because of their multi-functional properties. The purposes of this study are to investigate the effects of adding sodium hydroxide and citric acid in the basic sol-gel on the formation of zinc oxide (ZnO) nanostructures via a chemical method. A ZnO sol was prepared by dissolving zinc acetate dehydrate (ZnAC) and diethanolamine (DEA) in deionized water (H2O) and isopropanol (2- PrOH). The precursor solutions were spin-coated on the ITO/PET substrate and were dried at room temperature and pre-heated oven at 150°C for 3 minutes. Hot Water Treatment (HWT) was carried out at 70°C, 80°C, and 90°C for 8, 12, and 16 hours. X-ray diffraction (XRD) analysis recorded that (100) and (101) planes were formed as the preferred orientation samples with good quality and crystallization of the ZnO thin films. Based on Atomic Force Microscope (AFM) and Field Emission Scanning Electron Microscope (FESEM), HWT of 12 h immersed time was noticed as the optimum time for the growth of ZnO structures with the basic sol-gel solution. A 0.75 mol of NaOH and C6H8O7, respectively, was dropped in the basic solution for the second part of this study. The HWT was carried out at 90°C for 8, 12, and 16 hours. The presence of NaOH recorded higher intensity with ZnO sheet structure in a flower bud shape. The size of the structures approached nano-size. The presence of NaOH and C6H8O7 has changed the ZnO dimension from 1D to 2D. The ZnO 1D rod structures and 2D sheet structures can be used in LED, solar cells, photodetectors, gas sensor, field emitter, and photovoltaic devices.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Kamardin, Ili Liyana Khairunnisa
author_facet	Kamardin, Ili Liyana Khairunnisa
author_sort	Kamardin, Ili Liyana Khairunnisa
title	Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel
title_short	Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel
title_full	Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel
title_fullStr	Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel
title_full_unstemmed	Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel
title_sort	low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and c7h8o9 presence in sol-gel
granting_institution	Universiti Tun Hussein Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2021
url	http://eprints.uthm.edu.my/6476/1/24p%20ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN.pdf http://eprints.uthm.edu.my/6476/2/ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6476/3/ILI%20LIYANA%20KHAIRUNNISA%20KAMARDIN%20WATERMARK.pdf
_version_	1747831068652732416

Low-temperature growth of zinc oxide structures on flexible conductive substrate: effect of naoh and C7H8O9 presence in sol-gel

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